And feancis thill



(N0 Model.)

W. M. MARSHALL.

COMBINED GLOBE AND SHADE AND CHIMNEY.

No. 249,965. Patented Nov. 22,1881.

In van/070 rg/mauwg UNITED STATES PATENT OFFICE.

, WILLIAM M. MARSHALL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF TWO-THIRDS TO ANDREW N. COLE, OF NEW YORK, AND FRANCIS THILL,

or BROOKLYN, N. Y.

COMBINED GLOBE AND SHADE AND CHIMNEY.

SPECIFICATION forming part of Letters Patent No. 249,965, dated November 22,1881.

- Application filed January 29, 1881. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM M. MARSHALL, of the city of Philadelphia, and State of Pennsylvania, have invented a new and Improved Combined Globe and Shade and Chimney for Lamps, applicable also to lanterns, gas-fixtures, 850.; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings,

IO and to the letters of reference marked thereon.

In the drawings, Figure 1 represents the combined globe and shade. Fig. 2 represents a chimney to be used with the above-mentioned globe and shade. Fig. 3 represents, in vertical 1.5 section, the globe and shade fitting over the chimney. Fig. 4 represents the globe and shade used in place of an ordinary cone shade on what is called in the trade the illuminator. Fig. 5 represents the globe and shade as used on a gas-fixture with Argand burner and chimney, and in which a part of the flame will illuminate the globe and a part will illuminate the reflector below. Fig. 6 represents, in section, a portion of the corrugated metallic band used 2 5 in connection with the chimney to support the combined globe and shade.

The nature of my invention consists in makin g a combined chimney, globe, and shade, and the globe and shade combined and formed in one piece of glass, the lower part being the frustum of a cone, or the shade, and the upper part a flattened sphere, the upper opening in said sphere being about equal in size to the opening at the junction of the globe and shade.

'The object is to get a better combustion than is obtained from what is called the illuminator, and also to have thelight reflected more directlyfrom thewhite surface of the shade, it also enabling a more correct shape to be given to the ov shade part, giving it a focal point, and permitting the shade to be coated with an opaque metallic surface, the illumination of the globe remaining clear and distinct.

To enable others skilled in the art to make 5 and use my invention, I will proceed to describe its construction and operation.

I form of flint or clear glass an elongated chimney, A, of suitable shape, so that its bottom will fit the various lamp-burners now in use. The top A is drawn in to form a rest, upon which I place a band, B, of corrugated metal. The extreme top A of this chimney is flaring outwardly, so that when the band is sprung over it it will not readily come off. The whole of the band need not be corrugated; but it may be left plain in three places and provided with three pairs of small arms, b, that are preferably beveled at the top, to correspond with the pitch of the shade. These small arms I) may be made of distinct pieces of light sheet metal soldered on the outside of the band B, or made to pass through slots in said band. In either case these arms are simply to retain between them some soft or non-conducting material-- as mica, cork, or pasteboard, b, securely 6 attached to the band B. I then form of opal, or flint, or of other glass, a globe, O, widening out at the bottom to a cone or other shaped shade, 0. The point at which the cone joins the globe I make of such a size that it will fit on the corrugated band B placed around the upper end of the chimney A. This globe and shade,-restin g on the part A, will form with it a complete chimney, the corrugated band allowing for expansion and contraction. The part G, if made of flint-glass and frosted or sandblasted; will look well; but an opal glass top will be more effective still. But when the cone shade is coated with a metallic surface, 0 either on the top or under side the light will be greatly increased.

A holder may be used to support the globe and shade, said holder being a tripod, D, attached to or resting on the burner.

The combined globe and shade being made of a diameter at the bottom of the cone that fits in the holder E, what is called the illuminator maybe used instead of the shade-holder now used, and will produce better combustion, as well as be more ornamental, and if coated 0 with a metallic surface that withstands the heat, will be very much more efl'ective in throwing light down.

A lantern can be made of the combined globe and shade C O by inclosing it in an ordinary 5 metal'frame of suitable shape and size.

What I claim as my invention, and desire to secure by Letters Patent, is-- 1. A combined globe and shade having its upper part in the form of a globe, and having made integral with it a conical shade, forming the lower part thereof, substantially as described.

2. A combined globe and shade made in one piece, as described, in combination with a chimney upon which it is adapted to rest and approximately fit at the line ofjunction of the globe with the shade, substantially as described.

3. In combination with a lamp-chimneyconstructed as specified, the corrugated band of metal B, provided with outer projecting arms to receive a lamp-shade, substantially as described.

4. The combination ofa combined globe and shade made in one piece, a corrugated metal band provided wi th arms to receive said shade,

and a chimney constructed to receive and re- 20 tain said metal band and approximately fit the central opening of the combined globe and shade, substantially as specified.

5. A corrugated, or partially corrugated, strip of metal forming a ring having short project- 25 In testimony whereof I hereunto subscribe 30 my signature and affix my seal, in the presence of two attesting witnesses, on the 27th day of November, 1880.

WILLIAM M. MARSHALL.

Witnesses:

-W. L. LANCE,

H. B. POWELL. 

